Balance 2 using the data from the prior problem

This preview shows page 39 - 42 out of 47 pages.

We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
What is Psychology?: Foundations, Applications, and Integration
The document you are viewing contains questions related to this textbook.
Chapter A-A / Exercise 6
What is Psychology?: Foundations, Applications, and Integration
Pastorino
Expert Verified
Balance-2: Using the data from the prior problem, obtain 90% confidence interval for the left foot up data. a
Problem 22.5Balance-3:Examine the Left Foot 90% and 95% confidence intervals from the prior problems. What happened to confidence and precision when going from a 90% C.I. to a 95% C.I? Explain why this happens?
Problem 22.6Balance-4:The N = 94 statistics table to the right presents the mean, μ, and standard deviation, σ, for the studied population. Review the means and determine if they fall within the 95% confidence intervals generated in the previous problems for the samples of size n = 30. So, can samples be used to estimate population parameters? What would be some advantages of using samples to estimate population parameters?
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
What is Psychology?: Foundations, Applications, and Integration
The document you are viewing contains questions related to this textbook.
Chapter A-A / Exercise 6
What is Psychology?: Foundations, Applications, and Integration
Pastorino
Expert Verified
ANSWER KEY
23 11.17.2016
22)4120()177060010()1340()18940010()4120)(1340()57640010(c)d)80.813+(2.472)(170 calories)=501.053 milligrams of sodiumHot Dogs: Caloric and Sodium ContentThe caloric content and the sodium content(in milligrams) for 10 beef hot dogs is shown below (Source:Consumer Reports)Calories, xSodium, yx2y2xy15042022500176400630001704702890022090079900120350144001225004200012036014400129600432009027081007290024300180550324003025009900017053028900280900901001404601960021160064400903808100144400342001103301210010890036300134041201894001770600576400<= SUMSa) Calculate the correlation coefficient and determine if the variables have a significant correlation.b) Find the equation of the regression line.c) Construct a scatter plot of the data.d) Using the regression equation, what is the predicted sodium content for x=170 calories?Problem 23.1 (Correlation)correlation sig.STAT 101 TOPICS:Confidence Intervals for Small Samples & Proportions DOCUMENTS: HANDOUTS: Orange #23 AVAILABLE ONLINE:Orange #23; Green #22A & #22B; Hypothesis Testing ppt. ASSIGNMENT:Text LARSON:Ch. 7, section 7.1 – 7.3 Green #22B: problems #5, 6, 14, 18 Statistical Software #5 (SS#5)FORMULAS:On prior sheets (Confidence intervals on sheet #22). NEXT CLASS:Hypothesis Testing; SS#5 DUE; ExCr#8 DUE; QUIZ#6 (topics: Conf. intervals; normal dist. & ???) Statistics Essentials for Confidence Intervals (proportions): Know: 1) how to identify a confidence interval for small samples & proportions; 2) Calculating the intervals.
ANSWER KEY 41

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture